203874068551873 has 2 divisors, whose sum is σ = 203874068551874. Its totient is φ = 203874068551872.

The previous prime is 203874068551831. The next prime is 203874068551889. The reversal of 203874068551873 is 378155860478302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203757010825104 + 117057726769 = 14274348^2 + 342137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203874068551873 is a prime.

It is a super-2 number, since 2×203874068551873² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203874068551799 and 203874068551808.

It is not a weakly prime, because it can be changed into another prime (203874068551823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101937034275936 + 101937034275937.

It is an arithmetic number, because the mean of its divisors is an integer number (101937034275937).

Almost surely, 2^{203874068551873} is an apocalyptic number.

It is an amenable number.

203874068551873 is a deficient number, since it is larger than the sum of its proper divisors (1).

203874068551873 is an equidigital number, since it uses as much as digits as its factorization.

203874068551873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270950400, while the sum is 67.

The spelling of 203874068551873 in words is "two hundred three trillion, eight hundred seventy-four billion, sixty-eight million, five hundred fifty-one thousand, eight hundred seventy-three".